We have here two parallel lines, m, and n, cut by a transversal (t). In this case, we have that the corresponding angles are congruent.
We have that both equations represent corresponding angles. Then, we have that:
Now, we need to solve these equations for x. We can proceed as follows:
1. Subtract 5x from both sides of the equation:
2. Add 4 to both sides of the equation:
3. And finally, divide both sides of the equation by 2:
Therefore, the value for x is x = 7.